| Part number | SY21195IADC |
|---|---|
| Channel(#) | |
| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 18 |
| Switching frequency (min)(kHz) | |
| Switching frequency (max)(kHz) | |
| Vout (min) (V) | 0.6 |
| Vout (max) (V) | |
| Iout (max) (A) | 5 |
| Vout2 (min)(V) | |
| Vout2 (max )(V) | |
| Iout2 (max)(A) | |
| Vref accuracy (±%) | ±1.5% |
| Vout accuracy(±%) | |
| Control mode | |
| Duty cycle (max)(%) | |
| Operation mode | |
| Iq (typ) (uA) | |
| Features | Auto-Discharge |
| Package | TSOT23-6 |
| Operating temperature range(°C) | |
| Functional safety category |
The SY21195I high-efficiency 500kHz synchronous step-down DC/DC regulator operates over a wide input voltage range of 4.5V to 18V, and can deliver an output current up to 5A. It integrates a main switch and a synchronous switch with very low RDS(ON) to minimize conduction loss. The 500kHz pseudoconstant switching frequency enables using small external inductor and capacitor values.
The SY21195I uses constant-on-time and ripple-based control to achieve high efficiency at light loads and fast transient response for applications with high step-down ratios. It also provides cycle-by-cycle current limiting and overtemperature protection.
The SY21195I is available in a compact TSOT23-6 package.
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY21195IADC is intended for evaluating 500kHz, 5A, 18V input synchronous step-down DC/DC converter.
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-03-06 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
| TSOT23-6 | 2022-05-20 |
